could any one explain me what power factor and where it is use ful

3 Answers  

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if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

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What is the earth treantment procedure?

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what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 Answers  

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back emf of motor at the time of starting ?

2 Answers  

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What is CVT and what is relation with wave trap?

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750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

2 Answers  

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Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?

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Derive the inductance of a coil in terms of its physical factors.

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How the starter control the starting current in three phase AC Motor?(In DC apply the reistance).

6 Answers  

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Can we connect two or more energy meters/Amp meters on one CT set(Three phase).

5 Answers   Parle, Watermark Engineering,

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Is it alright to connect more than one RCCB of same rating in series for a three phase equipment?

3 Answers  

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